Balanced rudder



Feb. 13, 1945'.v

BALANCED RUDDER Filed Dec.. 29, 1943 2 Sheets-Sheet l Feb, 13, 1945. E. D. CARNAGHAN ETAL 2,369,279

BALANCED RUDDER Filed Dec. 29, 1943 2 sheets-sheet 2 Inventor v BJ' aar/maf Hmm improvements in rudders, particularly provide, in amanner as hereinafter fciency will be had.

Another very important object of the inven-` broken away in section.` i

the members and e Patented Feb. `13, 1945 `BALANCED kunnen v Edwin D. Carnaghan and `Frank Carnaghan,

LosAngeles, Calif.

Application December 29, 1943, Serial No. 516,078

The present invention relates to new and useful water craft, and has for its primary object to n set forth, a device of this character comprising a unique arrangement of blades whereby. maximum enition is to provide a multiple blade rudder of the aforementioned character which, when installed on a ship, will function properly and be equally effective whether the `vessel is going forwardly or.

in reverse.

Still another very important object of the invention is to provide a control `surface which is l adapted to function as an elevatoron airplanes and submarines. e Other objects ofthe invention are to provide `a multi-bladed rudderl which will be comparatively Vsimple in construction, strong, durable,` highly efficient and reliable in operation, compact e and which mayfbemanufactured at low cost.

Allof the foregoing, and still further objects *and advantages of the invention will become apof the following specification,

parent from astudy taken in connection with the accompanying drawe ings wherein like characters of reference designate corresponding parts throughout theseveral views, and wherein: f

Figure 1 is .a view in sideelevation of a' rudder l constructed in accordance with the present in` stern of a, vessel, a portion of said vesselbeing Figure 2 isa top plan view, showing the rudder installed on thetail assembly of an airplane.

Figure 3 is a viewin.I front elevation of the rudder.

Figure `l is a verticalsectional view, taken substantially on the line lle-4 of Figure 3.

' Figure 5 is a view in horizontal section, taken substantially on the line 5 5 of Figure.

Referring` now to the drawings in detail, it will be seen that reference character `I designates a` vertical post, which, in Figure 1 of theidrawings,

is rotatably mounted onthestern 2 of la vessel 3.

Suitable bearings 4 areprcvided for thejp'cst l.

Fixed on the lower portion of the `=post| is a pluralityof spaced, parallel, vertical blades 5` of suitable metal. The

A i blades 5 are connected, `at their upper and lower ends, by transverse bars 6` 2 Claims. (Cl. 114-166) i length of metal in the form of what may be confor air and secured together.

sidered a rectangular coil the `upperand lower portions of the turns of which `are in abutting engagement and soldered, welded orctherwise It is thought that the operation ofthe inven tion as thus far described will be readily apparent from a consideration of the foregoing. Of course,

asthe `vessel `3 moves forwardly or in reverse, the water flows freely through the spaces 1 between the` vertical blades 5. When the post .I is turned in theusual manner, allof the bladespresent 'surfaces to the water at an angle to the direction of travel for maximum effectiveness. As the post #extends centrally through the devicathe rudder is balanced and will function properly and with equal effectiveness whether the vessel` 3 is moving forwardly or in reverse. 3

In Figure 2 ofthe drawings, the rudder is shown mounted for operation on the tail as sembly 8 of anairplane `9 between the elevators I0 of said assembly. i As hereinbefore mentioned,

cvention,.showing said rudder installed on the having aligned openingsthereinthrough which the post Ipasses. In the embodiment shown,

6 are formed from asingle the device may also be installed to function` as` an elevator on an airplane or a submarine. When thus used, the device is rotated vertically. e

It is believed that the many advantages of a rudder` constructed in accordance with the pres-` ent inventionwill be readily understood, and al-` 'i though preferred embodiments are as illustrated and described, it is to be understood that changes inthe details of construction and in the combination and arrangement of parts may be resorted to which fall within the scopeof the invention as claimed.

What is claimed is:

1. A control surface comprising a post, and a substantially rectangular metallic coil fixed on the post, certain opposite cured together, the said certain portions ism to each other blades.

n i 2. A control surface comprising a post, and a' substantially rectangular metallic coil fixed on said post, certain Aopposite portions ofthe coil `beingin abutting engagement with each other andsecured together, the portions of said coil between said certain portions extending in spaced parallelism to each other and constituting a gang of blades, said gang' of blades extending in vertical relation in substantial parallelism with respeci; to said post.

` EDWIND. CARNAGHAN. l

FRANK CARNAGHAN.

portions of the coil being in abutting engagementwith `each other and seportions of said coil between i extendingin spaced paralleland constituting a. gang of i 

